In Advaita it is said that if one knows/realise Brahman (it), then one knows everything. You said that something that existed cannot perish with regards to the "god gene" but you have extinction dont you? Isnt that perishing in a way?.
Also I'm not sure i get what "god gene" is. Is it like being afraid of the dark? I wouldn't have hought it was genes more learnt behaviour.
Amala,
Though this question was for Renu, am chipping in a bit. Renu's answer was from the religious POV. But since you have mentioned you don't get what god gene is, here are a few inputs:
1) It is believed that genes determine behavior.
2) God gene is a euphemism for a set of genes that are considered to make a man believe in the existence of god. Meaning, it is in the genes of a man to believe in god.
One similar example wud be the 'gay gene' or genes that result in homosexuality (its not the person's fault for being a homosexual).
3) One of the main genes in this god gene theory is a gene called vmat2:
Vesicular monoamine transporter 2 - Wikipedia, the free encyclopedia Vmat2 effect the release of a neurotransmitter called monoamine, and affects the mood of a person.
Some people say that the brain is not connected to consciousness. But that may not be true.
Our moods, behaviour, etc are considred to be a result of various chemical reactions that take place in the brain. The structure of the brain is also being studied as a product of genes.
Ofcourse, the majority of it all is not understood yet, but rapid strides have been made in the recent years due to various (brain) imaging equipment, various techniques, genetic or protein studies, etc.
When the brain is damaged, its hard to say if consciousness (as we know it) can even exist in a person. So people like Sri Nara have a point in not believing in certain things. But hey, ppl like me, may be hard-wired to believe in 'god'. And hinduism certainly has a place for every belief system - be it an atheist or a theist.
Genes are generally considered as distributed randomly in various populations. On example of 'god gene' wud be the presence of spirituality in so-called NB alwars and nayanmars.
There is even a wiki article on so-called saints of 'backward' castes. Goes to show how far some people can go with the tags of forward and backward.
Hinduism must be the only religion in the world today where spirituality is monopolized to this extent - and i wonder if there is a gene that determines such behaviour in some individuals
As far as extinction and perishability is concerned, its really hard to say if genes really perish...
We can only say that a lot of differentiation and transformation is involved.
Example: a gene, like say lcn5 or hox genes, may be effecting a different function in rats or drosophila and a different function in humans. When cell differentiation took place several millions of years ago, that is when, multicellular organisms began to be formed, genes got distributed in different organisms.
So, going by genetic studies, all living creatures we see today are evolved forms, forms that evolved in various ways over many geological periods, and evolution does not stop. You might a good idea by reading on orthalogous and paralogous genes.
Regards.